Line-spacing mechanism.



wy/m J. MEER. LINE SPAlNG MECHANISMn APPLOATION FILED FEBx l, 1909 2 SHEETS-SHEET 1.

Patented May 1'?, 1910.

J. RABER.

LINE SPAGING MEGHANISM.

APPLIGATIGN FILED FEB. 1. 1909.

958,173. Patentedmy 17,1910.v

'UNITED STATES PATENT OFFICE.;

JOSEPH HABER, F POPLAR BLUFF, MISSOURI, ASSIGNOR TO ADDING TYPEWBITER COMPANY, 0F ST. LOUIS, MISSOURI, A'CORPORATIONDF MISSOURI.

i LINE-SPACING MECHANISM.

specificati@ @riepen raten. Patented May 17,1910,

Application tiled February l; 1909. Serial No. 475,406. 'l

Tolall'whoni t-'may concern:

Be 1t known that l, JOSEPH Raman, a citi- '/.en of the United States, residing at Poplar Bluff, Missouri, have invented n new and f useful LinefSpacing Mechanism, of which the following is a specification.

This invention relates to linespacing.,lr

mechanism for typewriting and other recording machines, and has for its yobject -tov providehan efficient mechanism operable 'to rotate the platen to -feed the paper in' its line spacing movements, and arranged to reventexceas movement of the 'platen in ine spacing, said mechanism being adjust able so that' the platen will be operated to -move the paper one orniore line spaces at eachroperation, as. desired. w

In Vt e accompanying drawings,'in which is shown one embodiment of my invention,

.having the line spacinfr mechanism mounted therein. tion of the p aten carriage in which the'line spacing devices are mounted. Fig. 3 is an enlarged sectional view illustrating the ar'- 'rangement of the line spacing operating clevice. Fig. 4 is a perspective- View' ofthe feed paw] and its operating mechanism. Fig. 5 is a'detailed. view whereb the movement ofthe feed pawl is'regu atedias' reuired'to determine the distance tol-'which t e'paper will be fed at each operatiorn Figa. 6 and 7 are views showing a modification of the invention.

laterally movab the laten supporting lates 2. The-platen sha 3 is journaled in arings in' the plates 2 and basa platen 4 attached thereon' and is provided on its ends with knobs 5-'for riveli understood urposes. A. feed ratchet wheel. d? to `the shaft 3', preferably at or.

lever 8 attached to the. tro'nt end thereof for manual operation. A spring 9 encircle",l the sleeve or shaft 7, having one end attached thereto 4and the o posite end in nnection withtho plate 2 e ectively to hold the lever "p8 and tho'operative parts'in' their idle positionLnbstantially. as shown in Fig. 2.

An arm or lever 10 is attached' to the rear and of the shaft 7 and is supported in a sub- It' 'tint-idly r horizontal position extending 'Figure' 1 is an end view of a platen carriage 1. indicates -a 1platen carriage of th usuall e type `to which are pivoted has one' a'rm extendin toward the l'end of=the platen 4. shaft 11 .hasI bearing within the shaft 7 and ia free to' rotate therein. On the front end of the shaft 11 is un operating'crank or lever '12,- and a. plate 13'is secured to the ,rear end of edf'. said shaft. A ratchet pin .14 is; mounted ina recess m the plate 2 and is actuated against the plate 13 by a springl, engaging in holes 16 in the-side of said plate to hold the' same l 1n its various adjustments. 'Theend ofthe 65' pin 14 is pointed so that the'shaftzll may be rotated byvo erationv of the crank or lever4 l12 end move' `to its various positions.

Upon the periphery or edge of the plate A .13 is formed a series of oisets,-thr`ee in the .70

present instance, designated as A, B, and C, respectively. .These offsets are at dilerent 'distances from the axis of the plate', the'one 1 marked A being nearest;.the one B, being next, and 'the fone C. being artliest. '75 4oii'sets and the' holes 16 are arra d in cor-l responding series so lthat. whenthe pin 14 is engaged in one of said-'hles'tlie correspond ing olsetzjwill be' presented atthe yproper posit-ion for use. y I gg yA. shaft/17 is 'sup ortedfby' 4the plate 2 above 4the shaft 7, 'an carries a pivoted pawl support '1B-,that is heldagainst operation' by gravity when-the arm 1Q 'is'lower'ed bra*l spring collar-'19 mounted between tlf' two 85 arms thereof, andbeing effectiveto resist l movement of said support aa ia'well under stood. A-feed pawl 20l isA mounted within the a'wlsupport'18, being su ported therein, 90

ote at its angle to the pawleu pprg-18-gndtowi" 'the end=of the platen and p'ivot 'near its end '.tolthe, arm 10. The other arm'of said-leverexftends 96 into the mwl support' l18 and.inl t o a' 23 forme in .the paw120.' A4 projection on the paw] support 18 isar'ran ed tof'en'-4 gage a ainstthe ofsets A, B, an C on the l stopjp 'ate 13 and therebystop 'movement 100 of the feed p .wl when'the latter is operatedA tov rotate thel laten in line spacing, A

lVhen lthe ever 8 lspperated'in t-hedirec; i

'non indicated' by the arrow invFi 2', 'the' arm 10 oscillates the ,lever.22i sli ing-the 1011iV pawl 20 into locked` engagement wit the'' ratchetwheel 6, and continued-movement of the `leve!" towardthejpawl .2() rotates .the platenuntibthe 'projection 24 comes. Into whichI is in operative'position. The odset A being nearest to the axis of its support, permits'greater* movementV of the pawl 2U and therefore farther rotation of the platen 5 than do Vthe offsets B and G. .'lhel spring collar 19 prevents downward moven'lcf* of the support 18 :until the feed pawl 2e ne. gages with the ratchet wheel 6, and insures lockedcngagement of the' pawl 'and'ratchet 1o Wheel priorto the downward movement of the pand. The pawl being-held in positive locked engagement witlrthe ratchet Wheel prevents exces'sjmovcmentof the platen when violently or forcibly `operated which 1 5 often occurs, such' excess movement-'carrying the paper beyond its proper position. In the -inod-ilicationillustrated in Figs; (3 and. 7, there is a pawlV support corresponding in function4 to' the pawl support 20 l8'and 'wl1ich is supported on the shaft 26 end prcventedfront actuation by gravity by a spring trict-ionl device'27. A pawl 2S is pivoted to the inner side of the pawl support ,25,V its movement being restricted by projections 28 impressing pinJfJ' on the pawl support. A"p in"30 extends through an oblique slot `3l iii 'the arm 'atta'chcd to the sleeve 4or shait and performing thesame functions 'asthe arm i() abovere- 30 e'rred to. 'An extension 33 on the pawl support-25 is supported to engage against -the oil'sets ,'B, and-C on the plate 13 in gthe same manner andfor the 4same purpose as'previously described.' VThe operation of this device is the same as/previously described. f` y i' 'I am aware that there may be modificak tions and alterations in the construction and arrangement of the parts embodying this invention Without departure from the spirit and scope of the invention, and I do not re- V strict myself 'to' identical features of con- 'struction or arrangement, but

What I claim and desire to secure by Letters Patent is: l

1'. The combination with a platen, and a' ratchet wheel, of a `shaft`,"mean's for, oscillatingsaid shaft, :marin connectedjto said shaft, a pawl support, a pawl mounted to slide in said'support, a lever connecting said armandrsaid pa'wl '.Wheiebysaid pawl will be movedV relativeto said support 4and engaged with the ratchet wheel when said oscillating means is'epcrated, and an adjustablcstop in position to' be engagedvby said pawl support whereby the movement of the p awl may bereguatdas desired, substam tlally as spceied. .f

2. The combinationfoi` aA platen, and a iii ratchet wheel, of, a Ishaft,,.t)pe'rating means' connected to said shaft, an armattached to said shaft, a pawl ysupport separate from said shaft, a 4pawl slidably carried by said support, a lever pivotallj,v connecting said U5 pawl and said arm whereby said pawl 'will be moved into engagement with said ratchet wheel when' sald arm is operated, a stop device to limit movement of said pawl support, and means for adjusting said Stop de'- vice to change the scope of movement of said 'pan-'1, substantially as specilied.

Line spacing mechanism comprising, in

combination with a platen, and a ratchet `wheel attached thereto,a pawl ipport,a pawl mounted to slide in said support and held out ofenoagement with -the ratchet wheel', i anarm, atlevcr pivoted to said pawl, support and to said arm-and connected with saidv paul, and means for operating said arm and l ever effectively to move said pawl into engagen'xent Witl the ratchet wheel'andhthen moving the pawl and support together cffectively to rotate said platen for line spacling, substantially as specified.

L 4. Line spacing mechanism comprising, 8,5 combination With a platen, and a iatclitl` Wheel attached thereto, a pawl support, a pawlcarried by said support and heldin idle position out of engagetaent with 'the ratchet Wheel, an arml separate from said Support, a lever pivoted to said arm and lsaid support and connected with said pawl,

means'for `moving said arm and lever effectively t0 move said pawl into engagement with Asaid ratchet wheel and then 'moving the pawl support and pawl together effectively to rotatethe platen, and an adjustable stop for limiting movement of said parts, substantially as specified.

5. Line spacing mechanism comprising, in combination with a platen, andl a ratchet wheel attached thereto a pivoted support, a pawl mounted to slide in said support, an operating lever, lever connections between said operating lever and said pawl whereby said paw'l will be caused to slide into engagement with the ratchet Wheel effectively to rotate the platen when said operating lever is operated, and means for firstdisengaging the pawl from the ratchet wheel and then moving said pawl to its idle position.

6..The, combination with al platen, and' a ratchet Wheel attached thereto, of a pivoted pawl support, a pawl mounted in'said support, anarm, .a lever connected to Said pawl and pivoted to said awl support and to said arm, a spring holding s'aid partslin idle position, and a lever operable to cause said pawl to be engaged with saidratchct Wheel, substantially'as described. l

7. 'lire combination with a platen, and a vratchet wheel attached thereto, of apanfl port, an arm, a lever Connected to said pawl pawl support and and pivoted to said arm and to said pawl support, u lever operable to cause said pawl to be engaged with said ratchet wheel, an adjustable stop limitingmovement' of said pawl, and a lever operable to adjust said stop in different adjustments, substantially as speecilied.

9. The combination with 'a platen,- znd a ratchet wheel attached thereto, 'of a pivoted pawl support, pawl mounted 1in said sup.

port, an arm, a lever connected to said pawl and pivoted to said. arm and to said pnwl Support,'a lever operable to cause. 'said pawl to be engaged with said ratchet Wheel, an adjustable Stop limiting movement of said pawl Support and pawl, a latch device a'etlng to hold said stop in 'dil'erent adjust ments, and a lever operable to Vadjust said shaft effectively to rotate stop in diferentadju'stnients, substantially. '.r

as specified. l

l0. The -'omb1nation withl a tubular shaft, and devices operate by Said av shaft'mountedin said tubular shaft, a stop in eaid second-named' sziid devices uoperated thereby, a lever operable toedjust said -stop in differentpositons, and a spring-actuated to hold said stop 1n its diferent substantially -as s eci'ed.

In testimonyw lereof, I' hereunto 'ax my fit-January, 1909, 1n. the presence of'ttvo Witnesses.

JOSEPH RABER; VVitnesSes:

CHARLES Prelims, y JOHN E.GREVE.

glatten-,a- 1, s'aid platen, of-

shaft arranged to- 1im1t movement ofsaid tubular shaft vend latch leffective positions,

35" signature to thisspecifcation this 13thday` 

